Apparently Barnacle and Acetone don't mix.

[PandoraFox]

Just a heads up I suppose.
I gave a part of the leg of my rough condition Barnacle a rubdown with a bit of acetone today, to test once and for all if his odd staining is some form of persistent dirt or aging. Unfortunately it is aging (if weirdly patchy aging), but to my surprise I also found the spot suddenly going a bit sticky. 
I've had "coating" or anything of the sort come off a pony due to acetone before, though I know it's a harsh chemical, so I thought I'd give a heads up about it. Unfortunately I don't know what suddenly caused poor Barnacle to react this way, whether it's something particular in his plastic or another reason.
The spot quickly stopped being sticky, nor is there horrid damage, but it has gone a bit glossier then the rest of him.

Another reason to keep acetone on the list as a last resort cleaning method only.

[kissthethunder]

I've noticed during deflocking that the ponies coats end up glossier after acetone is used to get the remaining glue off. Maybe it's just me, but I've found it unavoidable. I'd rather have a pony that is clean and a bit shiny than one who is covered in glue and mankey.

When using it on other ponies I tend to use quick, brief swiped, and then instantly wash to try and avoid this, but it's good to know that on aging ponies it can cause stickiness. Thanks for sharing hun, and good luck with Barney <3

[hathorcat]

That's a shame that has happened. I only ever use acetone in minimal quantities [on the end of a queue-tip] and ensure to immediately wipe it off rather than allowing it to evaporate. Unfortunately it is a chemical and can be a harsh one in a lot of circumstances. If Barnacle already had age marks, then his plastic was already breaking down so it really doesnt surprise me that expose to a chemical would cause something like that and bring about the plasticiser in the pony leaking. It is also possible that there was a thin layer of oil over the plastic pores [just from handling the pony over the years] and the acetone removed that which allowed the plasticiser to get out.

[PandoraFox]

Yes I know it's a risky chemical, hence why I tried just about everything else first.
I've never quite seen this reaction though, I'm certainly no expert yet, but I've done things like clean up neck glue and bad stains quite a few times now, so I figured I'd let people know it can be an issue. I'll be very careful on using it near ponies prone to age marks again.

Luckily the damage is can barely be seen, and Barnacle wasn't exactly minty to start with, but I certainly will keep the acetone away from him. The stickiness did dissipate in moments though, I'll keep a eye on the spot to see if it returns, but I'm hoping it's not plasticiser.
He is a fairly solid feeling guy already though so I'll certainly keep my eye out for issues of that sort.

[rtattles]

Odd. I use a lot of acetone but I never have the problem. But again, I don't know how concentrated your acetone is. I normally use those for removing nail polish, so whatever is safe for your fingers should be safe enough for your ponies too. I assume acetone acts a bit like turpentine....if it's too strong, it can "burn" your plastic like how strong stuff can burn through your rubber glove.

[PandoraFox]

Odd. I use a lot of acetone but I never have the problem. But again, I don't know how concentrated your acetone is. I normally use those for removing nail polish, so whatever is safe for your fingers should be safe enough for your ponies too. I assume acetone acts a bit like turpentine....if it's too strong, it can "burn" your plastic like how strong stuff can burn through your rubber glove.

It's fairly pure stuff, found with nail supplies to remove fake nails and such. (Hence it's quite a bit more potent then normal nail polish remover.) It can indeed eat through rubber gloves eventually. Hence I know it's strong and try to use it sparingly when possible. And I know to keep it miles away from any type of hard plastic. I've never seen pony plastic react to it in any way before though. Hence my surprise.

[achab1984]

Ya you have to be so careful with that stuff! Sorry to hear that happened to you.